Which preposition to use with microphones

for Occurrences 2%

pb id='102.png' /> GOODWIN, HAROLD L. A microphone for David, by Hal Goodwin.

in Occurrences 2%

I will now describe two microphones in which there is a shaking or jolting motion, and loose contacts, and no variation of pressure of the carbons against one another, and both of these microphones when used with an induction coil and battery give most excellent articulation.

before Occurrences 1%

It is said that a very ingenious American, named Drawbaugh, had anticipated all the inventors of every part of the telephone system; that he had invented a receiver before Bell; that he had invented the compressed carbon arrangement before Edison; that he had invented the microphone before our friend Professor Hughes; and that, in fact, he had done everything on the face of the earth to establish the claims set forth.

of Occurrences 1%

It does not appear, however, that microphones of the ordinary Gower-Bell type, for example, were tried in competition with the new invention, and in the absence of such tests the mere fact that very satisfactory results were obtained over a length of 200 miles proves very little.

on Occurrences 1%

They have telephone and microphone on the brain, and such a bawling between the house and the mill you never heard.

Which preposition to use with  microphones